
public class Circle {
	private double radius;
	
	public static String name ="这是一个圆";
//	public static String getName(){
//		return name;
		
//	}
	public Circle(double radius){
		this.radius =radius;
		name ="这是一个半径是；"+ radius+"的圆";
		
		
	}
	public double findArea(){  //fiandArea 计算面积
		return Math.PI *radius*radius;
	}

	public void display(){
		System.out.println("name:"+name+ "radius:"+radius);
	}
	

}
